Inside grain-door.



PATENTED JULY 14, 1903.

A. S. SWENSON.

INSIDE GRAIN DOOR.

APPLIGATION FILED JUNE 30, 1902.

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INSIDE GRAIN DOOR.

APPLICATION FILED JUNE 30, 19 02.

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Leavenworth, in the county of Leavenworth UNITED STATES ANDREXV S. SVVENSON, OF

Patented July 14, 1903.

LEAVENWORTH, KANSAS.

INSIDE GRAIN-DOOR.

SPECIFICATION forming part of Letters Patent N 0. 733,517, dated July 14, 1903.

Application filed June 30,1902.

To all whom it may concern:

Be it known that 1, ANDREW S. SWENSON, a citizen of the United States, residing at and State of Kansas, have invented new and useful Improvements in Inside Grain-Doors, of which the following is a specification.

My invention relates to grain-doors for railway grain-cars.

The object of my invention is to construct a permanent grain-door adapted to be used instead of the temporary doors in general use. Said temporary doors are made of boards nailed across the doorway and are broken to pieces before the grain is unloaded from the car. My improved door may be raised from the car-floor, swung around against the inside of the car, and suspended from hooks when not in use.

Referring to the accompanying drawings, Figure 1 is an outside elevation of a graindoor embodying my invention,the chain being broken off to expose the channel-casting. Fig. l 2 is a vertical sectional view of the door, showing a crowbar in position to raise the same. Fig. 3 is an enlarged elevation of one of the bolt-socket plates with the bolt in section. Fig. 4: is a vertica section through the socket and socket-plate. Fig. 5 is an elevation of the inner side of the door. Fig. 6 is an enlarged horizontal section of the channel-casting and the middle portion of the door. Fig. 7 represents the door as hung against the inner side of the car at the side of the doorway. Fig. 8 is an enlarged view of the hook on the end of the hoisting-chain.

1 is the grain-door. A vertical internallychanneled casting 3 is bolted centrally to the outer side of the door with bolts 4. In the channeled portion of said casting are a series of openings 5, each adapted to receive the toe of a crowbar, as described hereinafter. A bolt 6 passes through the door and through the top of casting 3, and attached to said bolt is one end of a hoisting-chain 7, which passes up around a pulley S, hung from the top sill of the door-casing. Secured on the depending end of the chain 7 is a grab-hook 9,which is adapted to be hooked into any link of the chain to form a loop of the chain. To raise Serial No. 113,709. (No model.)

the door, a crowbar 10, shaped as shown, is passed through such a loop in the chain 7 and its toe is inserted in one of the openings 5 in casting 3. The bar 10 is thus fulcrumed on the said loop, and pulling down the bar lifts the door a short distance, after which the toe of the bar is placed in the next lower opening 5, and the door is raised a little farther. The door may be raised to any desired height by repeating this operation.

Bolted to the upper corners of the door are two hangers 12 and 13, having openings therein, as shown. Two hooks 14 and 14 are secured to the inner side of the car, near the top thereof, at the same distance apart as the hangers 12 13. Secured to the car midway between the hooks 14 is a pulley 15.

Two men can lift the door and hang it from the hooks 1e by the hangers 12 13 after pulling the chain 7 off of pulley 8. If one man wishes to hang up the door, he can do so by running the chain over pulley 15, forming a loop in it by means of the grab-hook 9 and raising the door with the crowbar, as described previously, until the openings in the hangers 12 13 slip over the hooks 14. Secured to hanger 12 nearest the doorway is one end of a chain 16, the other end of which is secured to some portion of the car, as at 17. This chain prevents the door from falling flat when it is being swung around preparatory to hanging it up. Mounted in guides 18 at the sides of the outer side of the door are two bolts 19, the outer ends of which are bent at right angles, as shown. The sockets for these bolts are cut in the respective uprights 21 at the sides of the doorway, and each said socket is covered by an iron plate 22, having a horizontal slot 23 therein. When the bolts 19 are shot into their sockets, they may be turned so as to carry their bent ends'out of register with the slots 23, as indicated in Fig. 3, and the plates 22 will then prevent accidental withdrawal of the bolts. The purpose of said bolts is to hold the door down when the car is loaded or being loaded with grain.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

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The combination with a grain-door of an on the oppositeend of the ohain;snbstantially upright convex plate secured to the outer as described. 7 10 side of the door, said plate having spaced In testimony whereof I aflix my signature openings therein, said openings being adaptin the presence of two witnesses.

ed to receive the end of a lever or orowbar, a ANDREW S. SWENSON. pulley hung from the top of the doorway, a \Vitnesses: chain passing oversaid pulley, one end of the A. E. DEMPSEY,

chain being secured to the door, and a hook BERTHA EASON. 

